Coin-controlled mechanism.



R- H. BAKER.

COIN CONTROLLED MECHANISM.

APPLICATION FILED 213.25, 1910.

983261 Patented Feb.7, 1911.

l Z7 if I I 57W 0 3? Z7 34 J I 4 r W 1/ M Z5 4 5 I I .JZ M 4/ u z M 7 1I \4 u l V M M QX HPWGMA ROLLYN H. BAKER, 0F DAYTON, OHIO.

COIN CO.NTROLLED MECHANISM.

Specification of Letters Patent.

Application filed February 25, 1910. Serial a... 545,837.

To all whom it may concern:

Be it known that I, RoLLYN H. BAKER, a

citizen of the United States, residing at Dayton, in the county ofMontgomery and State of Ohio, have'invented certain new and usefulImprovements in Coin-Controlled Mechanism; and I do declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being bad to the accompanying drawings,and to the letters and figures of reference marked thereon, which form'a part of this spccification. This inven'tion'relates to new and usefulimprovements in coin-controlled mechanism, and itis especially adaptedfor use .in connection with .liquiil-dispensing pumps such as gasoleneoil pumps. p

The object of the invention is to provide a mechanism of the above typein which coins of different denominations may be placed to set themechanism in a condition to be actuated to discharge the oil.

The machine is simple in its operation and durable in construction, andthe essential features thereof will be hereinafter more fully describedin the specification to follow and pointed out in the claims.

In the accompanying drawings Figure 1 is a side elevation of a pumpprovided with my improved coin-controlled mechanism. Fig. 2 is a. sideelevation of the mechanism proper with the casing removed. Fig. 3 is aside elevation of the upper end of the mechanism opposite that shown inFig. 2. Fig. 4 is a sectional View on the line aa of Fig. 2. Fig. 5 is across sectional view of the rack on the line bb of Fig. 2. Fig. 6 is asectionalview on the line c-c of Fig. 2.

Throughout the specification and drawings similar reference charactersindicate corresponding parts.

In the drawings 1 designates a cylinder provided with a base 2 and a cap3. Reciprocating within said cylinder is a piston rod 4'which isprovided with the usual piston (not shown). As illustrated in. thedrawings, the pump is shown as a single discharge and it is pipe 5, adischarge pipe 6 and inlet and outlet valves. These features are wellknown to those familiar with pumps and they form provided with an inlethas not been deemed necessary to illustrate or describe them herein. Thepiston rod 4 1s connected at its upper end to a rack 7 provided with.ridges S which slide in left and right frames 9 and 10 attached to thecap 3. The frames 9 andlO are held in alinement by means of a plate 11and a cleat 12. The rack 7 is provided with teeth 13 \vhi'ch mesh with apinion 14 mounted on a shaft 15 "journaled in bearings 16. The shaft 15is provided with a crank 16" and when said crank is rotated and the rack7 is elevated, the liquid will be drawn into the cylinder through theinlet pipe 5. During the downward movement of the rack the liquid isdischarged through the pipe (5. It will be understood that the pumpproper may be of the double discharge type.

The present machine is constructed to dis- 7 pense two differentquantities of liquid, one

representing the value of 5c and the other,

the value of 25. The smaller quantity of liquid is dispensed by a shortstroke of the piston and the larger quantity by a full stroke. Thesevariable movements of the piston are secured by the following means:Mounted on the lower end of the rack 7 is a pin 18 which is adapted toengage a movable stop 19 to secure a short stroke of the piston, and toengage a stationary stop 20 to secure a full stroke of the piston. Itwill be seen, that, upon the position of the movable stop 19, depends'whether the piston shall be capable of giving a short or a full stroke.9Q

The position of the stop 19 is controlled as follows: The said stop ispivoted at 21 and 011' each side of said pivot there is upwardlyextending from said stop two rods 22 and 23 which are supported inguides 24 at their 7 upper ends. The extreme upper ends of the rods 22and 23 are bent at opposite rlght angles 24 and 25, which are adapted tobe engaged'by the coins to set the movable stop 19 as follows: Journaledin the frame 10 and is provided with a left notch 29 adapted to receivea 5c coin, and with a right notch 30 adapted to receive a 25 coin. \Vhenthe disk 27 is in its normal position, the notches 29 and 30 lie underorifices 31 and 32 which are the same sizes as their respective coins.11

The notches 29 and 3.0 are of sufficient depth to allow the top of thecoins, when in their Patented Feb. *7, 1911.

respective recesses, to be flush with the circular casing 33. The otherend of the shaft 26 is provided with a crank 34 on the outside of thecasing, and said shaft is controlled by a spiral spring 35 and stop pins36 and 37. The spring 35 and the pins 36 and 37 normally hold the disk 2in a position so that the notches 29 and 30 are ready to receive eithercoin. through the orifices 31 or 32. V

In the actual operation of the machine a com, one ata time, is insertedin either of the s notches 29 and 30 and the disk 27 is given anapproximately half, revolution by means of the crank 34. As the saiddisk turns, it carries the coin with it, said coin being held in itsposition in its notch by the circular casing 33 until said coin actingas a cam,

strikes one of the right angle, extensions 24 or 23 and moves the stop19 to either of its pos1t1ons. If the coin is of small denomination, thestop 19 will be placed in the position shown in full lines in thedrawings, and the stroke of the piston will be a short onecorrespondingto. the value of the coin; but if the coin be of largedenomination, the stop 19 will be thrown to the position shown in dottedlines, and the stop pin 18 will pass the movable stop 19 and will strikeagainst the stationary stop 20, thereby securinga long stroke of thepiston corresponding to the value of the large coin. After the coinpasses the right angled extensions 24 and 2-5,

it drops into a receptacle 39 provided with a door 39 through which thecoin may be removed. 1

The machine is prevented from being operated until the insertion of acoin by the following mechanism. Pivotally mounted at 40, in a recess 41in the frame 10. is a gear 42 which meshes with the side of the teeth 13of the rack 7 The gear 42 carries a. ratchet 43 which is engaged by apawl 44'pivoted at 45 to an arm 46 attached to a shaft 47 journaledin'the frame 10. The arm 46 is controlled by a. spring 48 which normallyholds the pawl 44 in engagement with thelratchet 43. It will thereforebe seen that when the pawl 44 is in engagement with the ratchet 43, itformsa lock and the rack will be prevented from being elevated and theresult is, no liquid can be dispensed. The rack is unlocked by the coinas follows. The other end of the shaft 47 opposite the arm 46 isprovidedwith a. flexible arm 49 which is engaged by a cam 50 mounted onan arm 51 pivoted at 52. The arm 51 is provided with an extension 53,which is adapted to be engaged by either of the coins before they strikethe right angled extensions 24 and 25. When one of the coms tion 53which elevates the ratchet 44-.

arm .49 snapping over an incline 55 on the rack 7. When the rack is thenelevated the pm 54 rides in a slot 56 in the rack 7, and

when said rack reaches the end of its upward stroke and begins itsdownward stroke, the pin .54, under the influence of the spring 48, willpass into a slot 57 through one of the inclined slots 58 (see Fig. 2).When the pin 34 passes into the slot 57 the pawl 44 engages the ratchet43 and will ride oy er the said ratchet owing to said pawl being pivotedat 45, but will prevent the rack moving ullwardly.

To prevent the machine being fraudulently operated by the operatormaking a series of short strokes when the rack is in a positionintermediate of its upper and lower position, there is provided in therack 7, between the slots 56 and 57, a plurality of inclined slots'5S.These slots are in close proximity; and it will be seen that theoperator is compelled. to give the rack a continuous and complete upwardstroke. for a downward stroke once begun must be finished as the pin 54will pass through one of the inclined slots 58 which allows the pawl 44to engage the ratchet 43.

All of the mechanism is in-closed in a front casing 60 and a rear casing61, which prevents unscrupulous persons from tampering with it.

The operation is as follows: Vhen a person desires to operate the pumphe is'instructed, by means of signs or otherwise. that the zero mark onthe. rack 7 should be in a position opposite that of the indicator '7,and that the crank 34 should be, in its normal position. The operatorthen places a coin in either of the orifices 31 or 32 and gives thecrank 34 an approximately half turn. The coin acting as a cam. firstunlocks the machine by engaging the projecmultaneous with this movement,the stop 19 is set. If the coin be of small denomination, the stop 19 isplaced in the position shown in full lines in Fig. 1, which allows asmall quantity of liquid to be dispensed. If the coin be of largedenomination, the stop 19 is placed in the position shown in dottedlines, which permits a large quantity of liquid to be dispensed. Acontinued movement of the crank 34 allows the coin to drop into thereceptacle 39. The operator then releases the crank 34 which is returnedto its normal position by the spring 35. The operator then rotates thecrank 16, until the pin 18 strikes either of the stops 19 or 20,whereupon the liquid is drawn into the cylinder 1. The crank 16 is thenrotated in the opposite direction, which movement of the crankdischarges the oil through the pipe 6. At the beginning of the downwardmovement, the pin 54 rides through one of the inclined slots 58 into theslot 57, which allows the pawl 44 to engage the ratchet 43,

thus preventing the rack from again moving" upwardly;

consequently the downward stroke must be continuous and the operator isso instructed.

Having described my invention, I claim: 1. In a coin controlledmechanism for use in connection with gasolene pumps, the'combinationwitha reciprocable member, and means for actuating the same, of a movablestop adapted to be engaged by said reciprocable member but normally outof engagement with said member, whereby said reciprocable member may begiven a short stroke and a long stroke by the actuating means therefor,and means actuated by a coin and which controls said movable stop,

, substantially specified.

2. In a coin: controlled mechanism, the combination with a reciprocablemember,

and means for actuating the same, of a movable stop controlling themovement of sald reciprocable member, a' lock controlling saidreciprocable member, andmeans actuated by a coin controlling saidmovable stop and said lock.

3. In a coin controlled mechanism, the combination with a reciprocablemember and means for actuating the same, of a movable stop-controllingthe movementof said reciprocable member, a lock also controlling saidreciprocable member, means actuated by a coin for controlling said stop,and adapted to unlock said lock to release said reciprocable member,said reciprocable member being alsoadapted to actuate the lock to locksaid reciprocable member.

4. In a coin-controlled mechanism, the combination with a reciprocatingrack provided with vertical slots of lengths equal to the throw of therack, and a series of inclined slots communicating with said verticalslots, means for reciprocating said rack, 'a pivotal stop adapted tocontrol the throw of the rack, connections extending adapted to receivea coin, said coin when received by said disk adapted to be moved to aposition to engage the connections extending from the pivotal stop, andto thereby control the movement of the rack through said pivotal stop.

5. In a coin-controlled mechanism, the combination with a rack having astop pin therein, means for reciprocating said rack, a pivotal stopcontrolling the movement of said .rack, connections extending from saidpivotal stop, a notched disk adapted to receive a coin, said coin beingadapted to en-' gage the extensions from said pivotal stop to set saidstop to a position to engage the stop pin on the rack or to not engagesaid stop pin.

6. In a coin-controlled mechanism, the combination Wltll a rack havingvertical slots of lengths, corresponding to the throxv of the rack, anda series of inclined slots be tween said vertical slots and leading intosaid vertical slots, means for operating said rack, gear and ratchetwheels actuated by the rack-operating means, a pawl engaging the ratchetwheel, an. arm controlling said pawl, said arm carrying a pin adapted to

